count against

British  

verb

1. (intr, preposition) to have influence to the disadvantage of

   your bad timekeeping will count against you

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count against Idioms  

1. Be disadvantageous to, as in His earnings this year will count against his Social Security benefits. This idiom uses count in the sense of “make a reckoning,” in this case negative. [Early 1900s]

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Example Sentences

Those teams could make it work because they had faced a D-II or D-III team at some point during the season which didn’t count against its games limit.

From Los Angeles Times

Due to the recent ruling in the Diego Pavia case, the season that Woods spent playing junior college does not count against his five years of eligibility.

From Los Angeles Times

Mutharika's age may count against him this election - speculation about his health is rife, especially as he has rarely been seen out in public during the campaign period.

From BBC

His partner for that success, Andrew Novak, is unlikely to have done enough to warrant selection though and Griffin's relative inexperience at this level may count against him.

From BBC

I've always had a soft spot for the 1982 Ferrari 126C2, particularly after the front suspension rocker arms it started the season with were replaced by wishbones and a pullrod, is also beautiful - although its fragility, exposed in the accidents suffered by Gilles Villeneuve and Didier Pironi, has to count against it.

From BBC